The current study examined the causal status effect (weighing cause features more than effect features in categorization) in children. Adults (Study 1) and 79-year-old children (Study 2) learned descriptions of novel animals, in which one feature caused two other features. When asked to determine which transfer item was more likely to be an example of the animal they had learned, both adults and children preferred an animal with a cause feature and an effect feature rather than an animal with two effect features. This study is the rst direct demonstration of the causal status effect in children. # 2000 Elsevier Science B.V. All rights reserved.